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LHR to CGX: distance & flight time
London (London Heathrow Airport) → Chicago (Chicago Meigs Airport)
3,936 mi
6,334 km · 3,420 nm
8h 11m
estimated nonstop flight time
-6h
time difference · heading northwest
See live LHR→CGX fares Phone-only fares on this route — call free
Flight time details
3,936 miles nonstop takes roughly 8h 11m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- LHR — London Heathrow Airport · London, United Kingdom
- CGX — Chicago Meigs Airport · Chicago, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near LHR
- LGW · London Gatwick Airport25 mi away
- NHT · RAF Northolt6 mi away
- HYC · Wycombe Air Park18 mi away
- FAB · Farnborough Airport19 mi away
Near CGX
- ORD · Chicago O'Hare International Airport17 mi away
- MDW · Chicago Midway International Airport9 mi away
- GYY · Gary Chicago International Airport20 mi away
- PWK · Chicago Executive Airport23 mi away
Frequently asked questions
How far is LHR from CGX?
The flight distance from London (LHR) to Chicago (CGX) is 3,936 miles (6,334 km, 3,420 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LHR to CGX?
A nonstop flight takes about 8h 11m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between London and Chicago?
Chicago is 6 hours behind London.
What is the cheapest way to fly from LHR to CGX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHR–CGX that never appear on search engines, with no booking fees.